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from __future__ import annotations

import uuid

from moto import mock_dynamodb

from airflow.providers.amazon.aws.hooks.dynamodb import DynamoDBHook


class TestDynamoDBHook:
    @mock_dynamodb
    def test_get_conn_returns_a_boto3_connection(self):
        hook = DynamoDBHook(aws_conn_id="aws_default")
        assert hook.get_conn() is not None

    @mock_dynamodb
    def test_insert_batch_items_dynamodb_table(self):

        hook = DynamoDBHook(
            aws_conn_id="aws_default", table_name="test_airflow", table_keys=["id"], region_name="us-east-1"
        )

        # this table needs to be created in production
        hook.get_conn().create_table(
            TableName="test_airflow",
            KeySchema=[
                {"AttributeName": "id", "KeyType": "HASH"},
            ],
            AttributeDefinitions=[{"AttributeName": "id", "AttributeType": "S"}],
            ProvisionedThroughput={"ReadCapacityUnits": 10, "WriteCapacityUnits": 10},
        )

        table = hook.get_conn().Table("test_airflow")

        items = [{"id": str(uuid.uuid4()), "name": "airflow"} for _ in range(10)]

        hook.write_batch_data(items)

        table.meta.client.get_waiter("table_exists").wait(TableName="test_airflow")
        assert table.item_count == 10
